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Question

The colour of light absorbed by an aqueous solution of CuSO4 is :

A
orange-red
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B
blue-green
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C
yellow
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D
violet
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Solution

The correct option is B orange-red
The aqueous solution of CuSO4 is blue in colour because of the absorption of orange-red light absorbed from the visible wavelength of light. Higher the concentration, deeper is the blue colour.

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